Attachment for gas-drums.



w. s. PRINCE. ATTACHMENT FOR GAS DRUMS.

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IN VEN ra /c MW/k/Wfi Prvhce O P I a/ rofi/veycs- Patented Feb. 11,1919.

APPLICATION FILED APR-18.1918

W. B. PRINCE.

ATTACHMENT FOR GAS DRUMS,

APPLICATION FILED APR. 18, 19T8.

Patented Fe. 11, 1919,

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WILLIAM B. PRINCE, OF CLEVELAND, OHIO, ASSIGNOR TO THE BISHOP-BABCOGK-BECKER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

ATTACHMEIN '1 FOR GAS-DRUMS.

Specification of Letters Patent.

Patented Feb. 11, 1919.

Application filed April 18, 1918. 7 Serial No. 229,400.

valve for gas drums, is more particularly directed to the provision of asimple and inexpensive means for preventing the freezing of theregulating valve by the discharging gas, such means being preferablyshown in the form of a casing partially inclosing the valve and providedwith means for heating the same. One object of the invention is theprovision of a simple means for maintaining a uniform temperature at theregulating valve. To the accomplishment of the foregoing and relatedends, said invention, then, consists of the means hereinafter fullydescribed and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawing Figure 1 is an elevation of a gas drum providedwith a regulating valve and having heating means attached thereto; Fig.2 is a similar view, but omitting the greater part of the gas drum andshowing the regulating valve partially inclosed in an open casing, towhich the heating means is attached; Fig. 3 is a transverse verticalsection through a modification of the device shown in Fig. 2 and Fig. 4,and is a transverse vertical section of a further modified form of mydevice.

In Fig. 1 there is shown a gas drum 1, which is of the usualconstruction largely used for holding nitrous oxid and other highlycompressed gases for use'in hospitals and other places. Attachedlaterally to the top of the gas drum is a conduit 2, which extends to agas regulating valve shown as inclosed in a substantially cylindricalcasing 3 and operated by a hand wheel 4. The gas passes through thisregulating valve and out through the conduit 5 and through a secondcontrolling valve operated by a hand wheel 6. As the gas expands inpassing through the regulating valve, which is usually in the form of adiaphragm or disk provided with a small aperture therein, the effectivesize of which may be controlled by the hand wheel, the gas becomes verycold as it gives up its heat in the expansion to that portion of the gaswhich passes through this opening. This decrease in the temperature ofthe gas freezes what moisture there is in the gas, of which there isalways some, and forms a film of snow on the diaphragm and around theedges of the valve opening, and in a very short time effectively closesthis opening. If the regulating valve is opened to its full extent thedischarge ofthe gas therethrough will be intermittent, since after somegas has passed through the opening will be closed by the freezing of theopening, which then will have to thaw out before any other gas passesout. For this reason, as stated, the discharging of the gas will beintermittent and will be interrupted every few minutes for a short time,due to th freezing or closing of the opening in the regulating valve.This is an extremely objectionable feature of such a device, as at thetime when the gas may be needed most it suddenly ceases to flow and theregulating valve must be thawed out before any further discharge can besecured. It is this objectionable feature the present invention isintended to overcome.

In Fig. 1 the cylindrical casing, which contains the regulator valve, isprovided with a threaded boss 7 extending downwardly from its lower sidefor the attachment of a small heating lamp 8. This heating lamp may beof any suitable type and may be operated with alcohol or other fuel, andis provided with a framework consisting of rods 9, which carry aninternally threaded nipple l0 engaging over the boss 7. The flame of thelamp is inclosed by a gauze cylinder 11 to prevent explosion orcombustion of any gases that may be in the atmosphere of the chamber inwhich the device may be in use. The operation of even such a small lampas the one shown has been found to be sufficient to prevent any freezingin the regulating valve and to secure a constant and steady fiow of gastherethrough.

In Figs. 2 and 3 I have shown another type of heating means, whichconsists of an open casing 12 in the form of an uncovered box, which isprovided at each of two op posite sides with hooks 13, which; engageover the two opposite conduits 2 and 5 and maintain the boXes in asubstantially-horizontal position below and partially inclosing thevalve casing 3.- This casing 12 may be filled with water or any othersuitable heat-- ing liquid to a sufficient depth to contact the casing8, and a lamp 8,-such as is shown in Fig. 1 may'thenbe attached to astud 1i disposed at the bottom'of the casing 12. Such a ,devicew-illcause aneven closer regutheshape of the regulating valve casingB, beingattached thereto by any suitable 7 means, such as lugs, and willbespaced ap at all points.

proximately a uniform distance therefrom This casing 15 isprovided witha stud 17-at its bottom, to which a lamp 8 maybe attached as in devicealready de scribed. Instead of b'eing formed as a part of, or attachedto the valve casing' 3'in themanner shown, I this casing 13 may bemounted upon the conduits 2 and 5 by means of hoops similar to thoseusedfor forming the casing 11.

Other modes of applyingthe principle of I my invention may be employedinstead of the one explained, change being made as- Gopies of thispatent'may be obtained for cylindrical casing regards the mechanismherein disclosed, provided the means'stated by any'of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as myinvention 1. The combinationof a compressedgas regulating device, anopen liquid contain ing casing attached thereto and inclosing the lowerportion of said device, and a lamp attached to said casing and adaptedto heat said casing and the liquid therein?" 2. The combinationofacompressed gas regulating device, provided with a threaded studprojecting downwardly therefrom, and l a lamp adapted to beremovably-engaged on said stud and being also'adapted to heat saiddevice. V,

3. The combination of a cylindrical com pressed gas regulatingv device,an'open semiconcentrically 1- spaced from and partially inclosingthelower'portion of said device, and a lamp attached to said casing andadapted toheat the-same.

4:; The combination of a-cylindrical-com= pressed gas regulating} devicehaving-"con duits ext-ending laterally in opposite directions therefrom,an open semi -cylindrical casing provided with straps engaging over saidconduits and supporting said casing concentrically and in a: spacedrelation to said device, and a lamp-mounted on said casing and adaptedto heat'jthefsamei- 5. The combination of a I compressed 1 gasregulating device and a lamp ad'apted to b'e: suspended adjacent saiddeviceandha-ving' a connection thereto, such connection being ofheat-conducting material.

. Signed by me thisfirstday of April, 1918.

' WILLIAM'BQ PRINCE;

five cents each, byaddressing'the Commissioner ofPatents, Washington, D.0.

